<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>details和summary元素的使用</title>
</head>
<body>
	<details>
		<summary>显示列表</summary>
		<ul>
			<li>列表1</li>
			<li>列表2</li>
		</ul>
	</details>
</body>
</html>